Excavating aparatus.



2 SHEETS-SHEET l.

Ma/MQW' Inventor.

Attorneys No. 844,104. PATENTBD PEB. 12, 19o?. L. A. DsY. BXCAVATINGAPPARATUS.

APPLIUATIN FILED DBO. 12, 1965.

Wntnesses:

7. 0 0u l, om. 1 B. E F D E T N T A P v. ,m D AM L.

EXGAVATING APPARATUS.

APLIGATIGF FILED 920.12. 1905.

2 BHBZTE-BHBET 2.

' Inventor,

VVftnesses:

lixtmwneysl 4, adapted to UNITED STATES QUEBEC, CANADA, ASSIGNOR OFMONTREAL, CANADA.

PATE)T T OflFICE.

EXCAVATING APPARATUS.

Specification of Letters Patent.

Patented Feb. 12, 1907.

Application Bled December l2. 1905. Serial No. 291,448.

To alZ whom t may concern,.-

Be it known that I, LOUIS Ansnivn DISY,

a subject of the King of Great Britain, residing at the city anddistrictof Montreal, in the rovince of Quebec, Canada, have inventedcertain new and useful `Improvements in Excavating Apparatus; and l dohereby declare that the following is a full, clear, and exactdescription of the invention, such as will enable others skilled in theart 'to which it appertains to make and use the same.

My invention relates to excavating apparat-us.

The object of my invention is to provide an excavating-bucket of thetype commonlyr called orange-peel buckets with means of for digging inaddition to the merc closing of its ivoied members.

A urther object of my invention is to arrange the pivotal points of themembers of the bucket with relation to a movable casing on a solid beam,so as to provide an eflieient and easily-operaed apparatus; and myinvention consists of the construction, combination, and arrangement ofparis as herein illustrated, described, and claimed.

In the accompanying drawings, forming part of this application, I haveillustrated one form of embodiment of my invention, in which drawingssimilar reference characters esignae corres pendingr parl s, and inwhich` Figure 1 is a side elevation of a construction-engine and of theapparatus of vention, showing its application. Fig. 2 is a view of thebucket and its connecting tion and ,some of the parts being shown in aseeond dotted-line position. Fig. 3 is aview of a bucket and itscomie'ctingparts, partly in plan and partly in horizontal section. Fig.4 is a view of the bueketssuspending means, partly in section and partlyin elevation. Fig. 5 is a horizontal section through thebucket-suspending beam, and Fig. 6 is a sectional perspective of theextremity of one of the Shells forming the bucket.

Referring to the drawings, 1 designates a construction-engine providedwithwindingdrums 2 and a derrick 3 to the latter of which is mpivotallysecured a fricion-clutch be opened and closed by the weighted lever 5,all of any suitable or ordinary construction.

' ed lo be held thereby Disposed in the friction-clutch 4 and adapt orreleased therefrom is a solid beam 6, preferably rectangular in'cross-section. lidably disposed on*tl1.c beam adjacent its lower end isa flanged casing,r 7. Secured on the beam G'abovet'he flanged casing 7are stops 8, adapted to limit the upward movement of the casiri'g." YSeicured io the casing,T 7 is a rope or other f'flci ble member 9, Vthroughthe medium of whit-ih", acting in conjuncl ion with the winding-drun'is2, the casing may be raised, the casing,r and its connecting` partsbeing)r actuated downward, as hereinafter described. f

Secured on the lower end of the beam is a ilxed bearing-plate 10,provided with four legs or lugs 11. Disposed on the opposite sides ofthe casing 7 are rotatable groovcd pulleys 12, and secured on theopposite sides of the be'ani (j are rotatable grooved pulleys I3. A ropeor other flexible member 14 has its lower end secured, as at 15, to thebearing-plate and is then passed successively around the grooved pulleysl2 and lll-'and from thence to the winding-drums 2 of theconstmction-enginc, by means of which the movable flanged casing 7 maybe actuated downward. A suitable guide-roller 16 is placed on the casing7, and another suitable guide-roller 17 is placed on the beam to guidethe flexible member 14. i

Suitable links 18 are disposed adjaccntthe lufrs or legs 11 of thebearing-plate 10 and have their upper ends pivotally Secured thereto andhave their lower 'eiids pivotally secured to extensions 19 on the upperVand inner ends of the shells 20, formingthex cavating-bucket. Each ofthe shells20 is prow'ded with a longitudinal strengtheningrib 21,disposed centrally of and on the outer surface thereof. Adjacent itssides each ,of the shells 20 is provided with ears V22, which arepivotally connected to the lower ends of braces 23, the u per ends ofwhich braces are secured to the angedcasing 7. Toproyid a pivotalconnection between the lowenends of the braces 23 and the ears 22 oftheishells 20, the lower ends of the braces 23 are bifurcated, as at 24,and are formed each with two bearings 25, suitable pivots 26 beingpassed through the bearings and theears 22.

The pointed ends 27 of theshells 20 are of hardened material and may besecured to the shells by riveting or in any suitable way.

'ro JOSEPH i ICC In the operation of my invention, the shells 20 beingin the dotted-line posiiirm'slmwn in Fig. 2, the beam may be released'from the friction-clutch l and actuated downward, so as to cause thepointed ends of the shells 2() to enter the material to be excavated.The rope or other flexible member 14 may then be wound on tbe drums 2 tocause the shells 2.0 to close. and dig; into the material to beexcavatedfthelugs 114 and links 1S formii'ig I and again opens thebucket to the dotted-line position shown in' Fig. 2. Having thus fullydescribed my invention,

what I claim as new, and desire to secure by Letters Patent, is- Y 1 Inan excavating apparatus, the combination comprising a beam, acasingslidably disposed on the beam, braces secured to the casing and providedwith bifureated lower ends having bearings thereon, a bucket comprisinga plurality 'of memberspivo'tally secured to the bearings on the lowerends of the braces, and pivotally connected with the beam, and meansforraising and lowering the casing'.`

2. In an excavating apparatus, the combination comprising a beam, acasing slidably disposed on the beam, braces secured t the easing' andprovided AWith bifurcated lower ends having bearingsthereon, a bucketcomprising a plurality. of members each provided with ears on oppositesides thereof, pivots connecting said ears to the bifurcated ends of thebraces, a pivotal connec- Lion between the members of the bucket 'andthe beam, and Ameans for raising;r and lowering the casing.

3. In an excavating apparatus, the combi-- nation comprising Aa movablebeam, means for locking thebeamagainst movement a casing slidablydisposed on the beam, a bucket comprising a plurality of members-eachha-ving an extension thereon pivetally connected with thebeam, apivotal connection between each of said 'membeis and the casing, andmeans for raisingr and lowering the casing.

4. In an excavating apparatus, the combi'- nation comprising a beam,.acasinar Aslidalily disposed on the beam, a bucket comprisingr aplurality of members, each provided with a E longitudinalstrengthening-rib and each pivlotally connected with the casing and thebeam, and means for raising and lowering the casing.

, 5. In an excava ting apparatus, the combination comprising a. beam, amovable member on the beam, means for raising,7 and lowering the movablemember, a bearing-plate secured on the beam, and a bucket compris ingr aplurality of members, each pivotally '1 connected with the casing andthe bearingplate. 6. In an excavating apparatuathe combination com:rising a beam, a movable member on the cam, means for raising andlowering the movable member, a bearing-plate secured on the beam andprovided witlilugs thereon, links pivoted to the lugs, and 'a 'bucketcomprising aiplurality of members, each pivotally connected with thecasing and pivota-llyr connected with the links.

7. In an excavating apparatus, the combi- -nation comprisingabeam, acasing move bly disposed on the beam, grooved pulleys on the beam andthe casing, a flexible memberv disv posed over the pulleys and havingone end secured to the beam, a bucket comprising a plurality of members`iivotally connected Wi th the casing, and the eam, and means for raisiugr the casing. n

S. In an excavatingapparatus, the combination comprising a movable beam,a movable member dispcsed on the beam, a bucket comprising a pluralityof parts each pivotally member, means for forcing the movable 4memberdownward and closing fthe parts of the bucket, means for raising andlowering the beam, means for locking the beam against movement and aflexible member secured to the casing and adapted to open the bucket,

'9. In an excavatingr apparatus, the combi- In witness whereof I-havehereun to set myhand in the presence of two witnesses.

LOUIS A. DSY. Witnesses C. C. Cousms, E. M. SLLNEY.

connected with the beam and themovable nation comprising-aconstruction-engine, a

vlie

